I try to delete the (/dev/mapper/36090a0a840946466620fa5bf4f4e3383) with command dd on both Servers but still got error the same.

Should I delete both of (/dev/mapper/36090a0a840946466620fa5bf4f4e3383) and (/dev/mapper/36090a0a840947460620f75bf4f4e133d)? If I delete (/dev/mapper/36090a0a840947460620f75bf4f4e133d) it will affect to Server Pool Cluster or not?